Air-heating oil stove



March 22 1927. 1,622,184

c. DAVIS AIR HEATING OIL STOVE 'Fi1ed'sept- 2o, 1926 2 sheets-sheet a ATTORNEY WITNESS- -50 tlieline -f--ofFigure 1.

Patented Mar. 22, 1927.

" OFFICE.

CLAWSON DAVISOF 'ANN ARBOR, MC-IICTAN, "ASSIGNOR'OF ONE-I-IALFKTO C. J'.. SEY- FRIED, F` MORENCI, MICHIGAN.

.AIR-HEATINGr OIL' STOVE.

Application filed September 20,1926. vSerial No.:135,596.

.- f -lieatiitheairso that it will be discharged at ;thejtop of .the device.

.f Aniimportant object isto provide a novel arrangenfient of fuel reservoir, airy inlet and q otherdetailed -features which will herein- 1 15 after; appear.

Anotherfobject is to provide a device of :this-character :an electric fan which maybe removed if itsuse is not desired but which ;is i ntendedto. act like a regular fan in Warm 120. .Weatherfandwhen the stove itself isy iiotin operatiom-,fthough the=fan iscapable of use for the; purpose of directing a stream ofhot f airl iorizontally into anooniso that it may f; act to warmup a fair corner.

y f An additional object is to provide a stove of this-character which possesses various structural.advantages and-features in additionitosthosef enumerated and such as Will -lieiieinagfter-y appeal' duringthe course of the .-30..followingn description and such -as will be.

An additional object isfto provide a stove i'of. -,tliis character which. Will be comparavtively .simple and inexpensive iii-manufac- -ture,.ieasy toiuse, positive in action, eilicient and durable in service,.and a vgeneral imfprovement in the art.

With.the-above. and other objects and advantagesin View, the invention consists iii lthedetailsof construction and the arrangeanent andcombination of lpartsto be herein- .afterfinore fully` described and claimed,` and illustrated inthe accompanying. drawings, in VVwhich n. i-gure 1 is a vert-ical longitudinal section takenthrough4 the stove.

1F igure 2 is azhorizontal section taken on theline 2 2 of Figure 1.,- and .Figure 3 is a horizontal section taken on ...Referring more particularly to the di'avv- .iiigs,l LhaveshoWn-the stove ascomprising a. cylindr icalA casinglO to Which is secured,

'many desired manner, a basell', the assembly 55.-.bei ng preferably mounted upon legs 12.

f ber. 31 leads from a valve device Aincluding a 'body or casing 33 into which leads an oil vconducting pipe-Bl; extending down into the Located Within the bottom port-ion ofthe casing and supported, as .for-instance upon an inturned Hangej j;13;at. the lower edge thereof is a tank or reservoir 14 for oilindi-k catedat 15. At 4the top of thecylindrical shell is a perforated plate structure V16 for the outelet of heated aii'. f Located;` Within the intermediate-portion of theshell orcasingand suitably securedthereto is a frusto conicalshell member 17 which leads into a; vertical cylindrical conduit- 18 above which is ahorizontal conduit 2O .from which leads a conduit 18a having aflaring upper end19 securedto the upper portion .of the casing or shell 10. The air conduit 2O communicates With the conduit'lS through anopening 21 and With the conduitlS@y through an opening 21a. The conduit 2O leadsto a perforated varea 22 on the shell. or casing 10 and is shown as having an ope n ing .23.locatedvin front of an electric fan Qtivvhich is mounted in the spacefbetween theconduit '18- andthe casing 10 and which may.y be supplied Wit-h current by any desi-red means.

Extending vertically through the center ofv S0 the reservoir or tank 14 but arranged in noncommunicating relation therewith is an air conduit 25 Which communicates. withk an opening 26 at the center ofthe bottom 1l, so

thatwhen the burner mechanisni,to bedescribed, is in operation,fresh air will beV drawn through the conduit and discharged .into the air yconduit 18, ythevupper end of the conduit member .25 Vbeinglaredas indicated at 27 and lterminating Within the frusto conical shell member 17.

Carried bythe, airconduit 25V at a point `above the top-of theitank vlet. is abracket structure 28 which carries the-:burner .devices, indicated ygenerally by. ithe. numeral 29.,V Each of these-'burner devices isf shown ascoinprising a cylindricalshell member 30 open at its top and preferably terminating just short of the frusto conical shell member 17. Extending laterallythrougheach oli-'100 theshell members 30 is a generator pipe 31 having a reflexly curved end 32-eXtending and discharging `into -the shelll member 30 as clearly indicated in Figure 1. 'The membottom portion 'ofA the reservoir Jtanl- 14. Also leading -intothe body or casing 33 is an air inlet pipe 3 5 which extends into andirllO communicates with the upper portion of the tank or reservoir 14. Any suitable rotary plug or other cutoff may be provided to form a part of the valve device and is of course mounted within the body 33 and provided with an operating "handle 36. A priming cup 37 may be provided within each of the cylindrical members 30 for the purpose of starting the operation of the burner.

In the operation of the device, it will of course be apparent that the generators or burners may be started in operation by placing a small quantity of oil within the priming cups 37 and igniting it so as to effect heating of the members 31 through which the mixture of oil and air will pass. After these members 8l have become thoroughly .heated it is of course apparent that the oil drawn therethrough will become vaporized. The air within the reservoir 14 and above the surface of the oil therein is drawn into the generators or burners through the pipe 3,5 and will mix with the oil vapor or gas so as to provide a very easily combustible miX ture which will burn, the flame issuing out at the top of the members 30. Of course, after the priming action is accomplished, the burning takes place at the discharge ends of the curved pipe members 32, the flame playing upon the members 31 and maintaining them in a thoroughly heated con-- dition at all times. Furthermore, t-he provision or production of such a flame will cause a suction through the pipes 34 and 35 so a constant supply of oil and air will be brought to the burners or generators.

The flame issuing from the generators or burners causes a suction effect through the air conduit 25 so that fresh air will be drawn in at the bottom of the stove and will be eifectually heated upon contact with the flame. The air of course passes upwardly through the cylindrical conduits 18 and 18a and out at the top of the shell or casing l0 through the perforated cover plate 1G.

In case it is desired to direct a horizontally extending or traveling stream of heated air into the far corner of a room or the like, the fan 24 may be set in operation so as to produce a transverse air blast through the conduit member 20, this heated air issuing out through the perforated area 22 in the side of the casing or shell 10.

In summertime, when there is no heat required, the fan 24- may be operated simply for cooling purposes in a well known and obvious manner. It is really believed that the construction, operation and advantages will be readily apparent to one skilled in the art without further explanation, though it' should of course be pointed out at this time that there must be a certain door arrangement provided so that access may be had to the interior of the stove for the purpose of replenishing the fuel supply andinaking any necessary adjust-ment of the burner valves or replacement of any parts which become burned out or need repairing.

l While I have shown and described the preferred embodiment of the invention, it should be understood that I reserve the right to make such changes in the form, construction and arrangement of parts as will not depart from the spirit of theinvention or the scope of the subjoined claims.

Having thus described the invention, I claim :-M

l. In a stove of the character described, a casing, a frusto conical shell member located wit-hin the intermediate portion of the casing, a conduit extending to the `upper end of the casing, the upper end of said conduit being flared, the top of the casing being perforated, a fuel reservoir located within the bottom of the casing, an air inlet conduit extending upwardly centrally through the fuel reservoir in non-communicating relation thereto and discharging into said frusto conical shell member, and oil burners mounted within the casing between the oil reservoir and said frusto conical shellmember.

2. In a stove of the character described, a casing, a frusto conical shell member located within the intermediate portion of the casing, a conduit above the shell member and extending to the upper'end of the casing, the upper end of said conduit being flared, the top of the casing being perforated, a fuel reservoir located within the bottom of the casing, an air inlet conduit extending upwardly centrally through the fuel reservoir in non-communicating relation thereto and discharging into said frusto conical shell member, and oil burners mounted Within the casing between the oil reservoir and said frusto conical shell member, oil supply pipes leading from the bottom portion of the reservoir` into the burners and air supply pipes leading from the top of the reservoir into the oil burners.

3. In a stove of the character described, a casing, a frusto conical shell member located within the intermediate portion of the casing, a conduit connected with and receiving from the shell member, al secondconduit eX- tending to the upper end of the casing, the upper end of said second named conduit being flared, the top of the casing being perforated, a fuel reservoir located within the:

bottom of the casing, an air inlet conduit eX- tending upwardly centrally through the fuel reservoir in non-communicating relation thereto and discharging into said frusto conical shell member and oil burners mounted within the casing between the oil reservoir and said frusto conical shellmember, a laterally extending outlet conduit located' between and communicating with said' conduits and extending to a perforated area in lOO the side of the casing, and means for creating a lateral blast through said lateral conduit.

4. In astove of the character described, a casing, a frusto conical shell member l0- cated Within the intermediate portion of the casing, a conduit connected with and receving from the shell member, a second conduit extending to the upper end of the casing, the upper end of said second conduit being flared, the top of the casing being perforated, a Vit'uel reservoir located Within the bottom of the casing, an air inlet conduit eX- tending upwardly centrally through the Jfuel reservoir in non-communicating relation thereto and discharging into said rusto conical shellmember, oil burners mounted Within the casing between the oil reservoir and said frusto conical shell member, a laterally extending outlet conduit communicating with said first and second named conduits, and extending to a perforated area in the side ot the casing, and means for creating a lateral blast through said lateral conduit, comprising an electric fan mounted Within the casing at one Side of the conduit, the conduit having an opening therein opp0- site the fan and diametrically opposite the lateral conduit.

In testimony whereof I allix my signature.

CLAVVSON DAVIS. 

